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Filtering by: Subject Fish hatcheries -- Environmental aspects Resource Type Masters Thesis

Assessing disease impacts of hatcheries on downstream salmonids in the Willamette River Basin, Oregon

Creator:

Jakaitis, Michelle

Abstract:

Hatcheries are often perceived as a source of pathogen amplification, potentially increasing disease risk to free-ranging populations; at the same time, free-ranging fishes may introduce pathogens into hatcheries through untreated water sources. Many pathogens exist naturally within the environment (with the exception of introduced pathogens) and the presence of a...

Resource Type:

Masters Thesis

Full Text:

during both epizootics and non-epizootic periods. Naïve sentinel fish were placed in hatchery influents
Mercury levels in albacore tuna (Thunnus alalunga) and the effects of canning

Creator:

Rasmussen, Rosalee S.

Abstract:

Mercury is a toxic heavy metal released into the environment from both natural and anthropogenic sources. The organic form of mercury is a potent neurotoxin that is especially dangerous to developing nervous systems. Results of recent studies have caused the Food and Drug Administration (FDA) and the Environmental Protection Agency...

Resource Type:

Masters Thesis

Full Text:

Environmental Protection Agency (EPA) to issue new advisories regarding fish consumption for pregnant women and
Characterization of stream fish assemblages and land use associations within a southern Ohio National Forest

Creator:

LaRue, Michelle L.

Abstract:

Seasonally, in 1998 and 1999, I examined spatial and temporal variation in fish assemblages of agricultural, forested, and acid mine drainage tributaries within the Wayne National Forest (WNF) in southern Ohio. Land use and natural disturbance explained patterns in stream fish assemblages. Creek chub and green sunfish were present in...

Resource Type:

Masters Thesis

Full Text:

fish assemblage structure, but in times of environmental fluctuation, water chemistry of other site